Systems, apparatus, and methods for power management

ABSTRACT

Systems, apparatus, and methods for controlling power modes in electronic devices are provided. A system may include an electronic device and an input device that sends power mode selection information via a network to a power mode selection receiving component in the electronic device. The electronic device includes a first power component that powers a first component, and a switching component that controls the first power component. The electronic device may include a second power component that powers a second component. The switching component may control the second power component. The power mode selection receiving component and the switching component may be powered independently of the first and the second component. If the power mode selection information indicates an off mode, the electronic device may provide power to the power mode selection receiving component and the switching component and not to the first and the second component.

This application claims priority to U.S. Provisional Application No.61/450,814, filed on Mar. 9, 2011, the disclosure of which isincorporated herein by reference in its entirety.

TECHNICAL FIELD

Disclosed embodiments relate generally to power management forelectronic devices. More specifically, disclosed embodiments relate toreducing power consumption in remote-controlled electronic devices.

BACKGROUND

Recently, the cost of energy has risen and the environmental impact ofenergy consumption has become better understood. As a result, it isdesirable to reduce energy consumption in order to save money andprotect the environment. However, conventional electronic devices,including, e.g., digital devices such as amplifiers, radios,televisions, audio/video receivers, video cassette recorders (VCRs),digital versatile disc (DVD) players, digital video recorders (DVRs),game consoles, etc., consume energy even when they are powered “off.”

For example, when conventional electronic devices are powered off,specific components in the devices remain powered on and thereforecontinue to consume energy and draw power from a power source, such asan outlet. The conventional electronic devices may keep these componentspowered on in order to ensure that the device may quickly respond to auser powering on the device, for example, by pressing a power button onthe device or on a remote control. For instance, remote control sensorsin conventional electronic devices are often integrated into a circuitthat provides power to specific components when the device is poweredoff, and thus allow the specific components to draw power while thedevice is in a power-off mode.

This setup in conventional electronic devices has a dramatic effect onenergy consumption. For example, because both the specific componentsand the remote control sensor continue to draw power even when thedevice is powered off, the conventional electronic devices tend toconsume approximately 45% of their rated energy consumption whilepowered off, wasting a large amount of energy.

SUMMARY

Systems and methods consistent with disclosed embodiments may provide afirst power component capable of providing power to a first componentand a second power component capable of providing power to a secondcomponent. A power mode selection receiving component may be capable ofreceiving an indication of a selected power mode. A switching componentmay control the two power components based on the received selectedpower mode. The power mode selection receiving component and theswitching component may be powered independently of the first and secondpower components, so that in an off power mode power is blocked from themain component and the standby component, while the power mode selectionreceiving component and the switching component receive power.

In some embodiments, an input such as a remote control provides a userwith three choices for managing the power of the electronic device. Afirst choice may be an on mode. In response to the user's choice of anon mode, the switching component may control the power components toprovide power to both the main and standby component. A second choicemay be a standby mode. In a standby mode, the switching component maycontrol the power components to provide power to the standby componentand block power from the main component. A third choice may be an offmode. In an off mode, the switching component may control the powercomponents so that power is blocked from both the main component and thestandby component. In all three modes, power is supplied independentlyto the power mode selection receiving component and the switchingcomponent.

Additional objects and advantages of disclosed embodiments will be setforth in part in the description which follows, and in part will beapparent from the description, or may be learned by practice of thedisclosed embodiments. The objects and advantages of the embodimentswill be realized and attained by means of the elements and combinationsparticularly pointed out in the appended claims.

It is to be understood that both the foregoing general description andthe following detailed description are exemplary and explanatory onlyand are not restrictive of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute apart of this specification, illustrate several embodiments and togetherwith the description, serve to explain the principles of theembodiments. In the drawings:

FIG. 1 is an exemplary diagram of an electronic system consistent withdisclosed embodiments;

FIG. 2 is an exemplary embodiment of an input device, consistent withdisclosed embodiments;

FIG. 3 is a power mode selection circuit, consistent with disclosedembodiments;

FIG. 4 is an exemplary block diagram of a switching component,consistent with disclosed embodiments;

FIG. 5 is an exemplary power mode selection process, consistent withdisclosed embodiments; and

FIG. 6 is another exemplary power mode selection process, consistentwith disclosed embodiments.

DESCRIPTION OF THE EMBODIMENTS

Disclosed embodiments may provide a capability for reducing almost allpower consumed by an electronic device when powered off. Systems andmethods consistent with disclosed embodiments provide power to a powermode selection receiving component, e.g., a sensor that receives acommand from an input device. The power mode selection receivingcomponent receives the command independently of other components in theelectronic device, allowing one or more of the other components toreceive no power while the power mode selection receiving componentreceives power. Reference will now be made in detail to exemplaryembodiments, examples of which are illustrated in the accompanyingdrawings. Wherever possible, the same reference numbers will be usedthroughout the drawings to refer to the same or like parts.

FIG. 1 is a diagram of an electronic system 100 consistent withdisclosed embodiments. Electronic system 100 may include input device110 connected to one or more electronic devices 120 via network 130.Input device 110 may communicate with one or more of the electronicdevices 120 via network 130 to change various settings on electronicdevices 120, such as power settings, for example.

In some embodiments, electronic system 100 may be a home entertainmentsystem. In this example, electronic devices 120 a, 120 b, 120 c, 120 d,and 120 e may be a television, an audio/visual receiver, a DVD player, aVCR, and a DVR, respectively. In one embodiment, other types ofelectronic devices may be implemented in system 100 such as set topboxes, video game consoles, music playback devices, etc. Input device110 may communicate with electronic devices 120 via network 130,allowing a user to interact with the electronic devices 120. Forexample, in some embodiments, input device 110 may allow a user tochoose a current power mode for each of the electronic devices 120. Thepower modes may include an on mode, a standby mode, and an off mode, forexample.

When a device is in an on mode, the device may be functional from thestandpoint of the user. For example, in an on mode, most or all of thecomponents in the device may receive power. When a device is in astandby mode, the device may not be functional from the standpoint ofthe user, but some of the components in the device may receive power sothat the device can become functional quickly in response to a userswitching the device into the on mode. For example, in a standby mode,the device may power a subset of its components, but may not supplypower to other components. When a device is in an off mode, the devicemay not be functional from the standpoint of the user. Further, in anoff mode, the device may supply power to a smaller subset of componentsthan are powered in the standby mode. For example, in one embodiment, inthe off mode, the device may only provide power to the componentsnecessary to receive an input from input device 110.

Electronic devices 120 may each have various components (not shown). Insome embodiments, these components may be divided into two or moregroups. For example, in certain embodiments, electronic devices 120 mayeach have one or more main components and one or more standbycomponents. Main components may include electronic components that canbe powered on and off relatively quickly, while standby components mayinclude electronic components that take a longer time to becomeoperational after they are powered on. For example, standby componentsmay include bootable electronic devices that require additional time toboot before becoming operational. As discussed in greater detail below,the main components may receive power in an on mode, but may not receivepower in either an off or standby mode. Likewise, the standby componentsmay receive power in an on and a standby mode, but may not receive powerin an off mode.

Network 130 may include any one of or combination of wired or wirelesscommunication mechanisms. For example, network 130 may include awireless network such as infrared (IR), radio frequency (RF), microwave,cellular and/or wireless network employing, for example, Bluetooth orIEEE 802.11 protocols. Likewise, network 130 may include a wired networksuch as twisted pair wire, coaxial cable, optical fiber, and/or adigital network. Additionally, network 130 may be integrated into anylocal area network, wide area network, campus area network, or theInternet and may allow for communication between input device 110 andelectronic devices 120 when input device 110 is in a different locationthan electronic devices 120.

While one input device 110 is shown in FIG. 1, system 100 may use anynumber of input devices 110. For example, in some embodiments, one inputdevice 110 may control multiple electronic devices 120. In otherembodiments input device 110 may control a single electronic device 120,such as electronic device 120 a, for example. Similarly, while FIG. 1shows five electronic devices 120 a-120 e, system 100 may include anynumber of electronic devices.

Similarly, input device 110 may be any type of device that a user mayuse to send an input to one or more of the electronic devices 120. Forexample, in some embodiments, input device 110 may be a remote controlthat allows a user to communicate wirelessly with electronic devices120. However, input device 110 is not limited to a remote control andmay include, e.g., a keyboard, mouse, personal computer, cellulartelephone, smart phone, personal digital assistant, tablet, an input forreceiving voice commands, a video game console controller, etc.

FIG. 2 is an exemplary embodiment of input device 110 that is configuredas a remote control, consistent with certain disclosed embodiments.Input device 110 includes an output component 210 and a front face 220that may include multiple buttons such as buttons 230, 240, 250 and 260,for example. A user may select one or more of buttons 230-260 in orderto change settings on one or more of electronic devices 120. In responseto the user's selection of a button, input device 110 may send anelectronic signal to one or more of electronic devices 120 via outputcomponent 210, the signal indicating the selected setting change. Theconfiguration, format, design, and “look and feel” of input device 110is not limited to that shown in FIG. 2 and such features may varyconsistent with disclosed embodiments.

In some embodiments output component 210 may include IR light emittingdiodes (LEDs) capable of sending an IR signal via network 130 to anelectronic device, such as electronic device 120 a. The IR signal may bemodulated, for example, to encode data, and the signal may be receivedby electronic device 120 a. Other communications protocols andcomponents may also be used, such as Bluetooth, IEEE 802.11, etc.

In one embodiment, input device 110 may include power buttons that mayallow a user to place an electronic device into different power states.For example, input device 110 may include on button 230, standby button240, and off button 250. In some embodiments, on button 230 and standbybutton 240 may be combined to a single button that toggles between thetwo power states when selected. A user may select on button 230 to placean electronic device into on mode, standby button 240 to place anelectronic device into standby mode, and off button 250 to place anelectronic device into off mode. The different power modes will bediscussed in greater detail below.

Buttons 260 may include various other setting options for an electronicdevice. The arrangement, number, and selection of buttons 260 may vary,e.g., depending on the type of electronic device(s) being controlled.

Buttons 230-260 may be any input mechanism capable of receiving a user'sinput. For example, in some embodiments, buttons 230-260 may be physicalbuttons that a user depresses to indicate a choice as shown in FIG. 2.In other embodiments, one or more buttons 230-260 may be incorporatedinto an electronic display, such as a touch screen, for example, and theone or more buttons 230-260 may be displayed as icons on the screen forthe user to select. In certain embodiments, buttons 230-260 mayincorporate both physical buttons and a touch screen. In certainembodiments, input device 110 may use voice recognition and/or gesturerecognition instead of buttons in to receive inputs from the user.

FIG. 3 is an exemplary power mode selection circuit 300, consistent withdisclosed embodiments. In one embodiment, power mode selection circuit300 includes power input 310, stabilizing diode 320, transformer 330,power mode selection receiving component 340, switching component 360,main switch 370, standby switch 375, power lines 391, 393, 394, 397, and398, and communications lines 392, 395, and 396. These components aredescribed in greater detail below with respect to FIG. 3.

Power mode selection circuit 300 may be included in an electronicdevice, such as one or more of electronic devices 120, for example, toprovide power to various components in the electronic device based on aspecified power setting. For example, an electronic device may includeone or more main components 380 and one or more standby components 385,which are both powered by power mode selection circuit 300. Theidentification of electrical components as either main components 380 orstandby components 385 may vary among different electronic device 120and among different embodiments.

For example, a DVD player may include several components, such as amicroprocessor, video encoder and decoder, DVD tray motor, audiosystems, DVD lens reader, internet connection, RAM, flash memory, etc.In one embodiment, key electrical components, such as the microprocessorand RAM, may be main components 380 and all other components may bestandby components 385.

In another embodiment, main components 380 may include one or moreelectronic components that can be powered off and powered on relativelyquickly, while standby components 385 may include one or more electroniccomponents that take a longer time to become operational after they arepowered on. In the DVD player example, main components 380 may includethe microprocessor, RAM, and a clock, and standby components 385 mayinclude all other components.

In another embodiment, main components 380 may include certain keycomponents and components that allow an electrical device to performcertain functionalities even in an off mode. In the DVD player example,the microprocessor, main components 380 may include RAM, clock, DVD traymotor, and components that enable network connections (e.g. theInternet), and standby components 385 may include all other componentsincluded in the DVD player. Thus, even in an off mode, a user may stillbe able to open and close the DVD tray and the DVD player may maintainan Internet connection.

In some embodiments, power mode selection circuit 300 may allow a userto selectively power on and power off the main components 380 and thestandby components 385. However, in other embodiments, power modeselection circuit 300 may allow a user to selectively power the maincomponents 380 and/or the standby components 385 in a lower-powerconsumption mode. For example, in the DVD player example discussedabove, power mode selection circuit 300 may provide power to componentssuch that a clock is fully operational, but not enough power to enableto DVD tray to open.

While not shown in FIG. 3, in some embodiments main components 380and/or standby components 385 may be communicatively connected to anetwork, e.g., the Internet. Main components 380 and/or standbycomponents 385 may obtain information via the network in order to becomeoperational faster after being powered on. For example, main components380 and/or standby components 385 may obtain date, time, and locationinformation from the network. In some embodiments, main components 380and standby components 385 may be connected to the network via a networkconnection that is integrated into electronic device 120 separate frompower mode selection circuit 300. In other embodiments, main components380 and standby components 385 may be connected to the network viaswitching component 360. In such embodiments, switching component 360may obtain the information from the network and send the information tomain components 380 and/or standby components 385 via a wired orwireless connection between switching component 360 and main components380 and/or standby components 385.

Power mode selection circuit 300 may allow selective power control inresponse to user or other forms of input to power on and power off maincomponents 380 and standby components 385 independently. In oneembodiment, the selective power control may be performed via separateswitches, such as main switch 370 and standby switch 375, for example.Switches 370 and 375 may each be implemented using any type of switchingdevice such as solid state switching devices, e.g., analog switches,solid state relays, metal oxide semiconductor field effect transistors(MOSFETs), etc.

Further, while two switches 370 and 375 are shown in FIG. 3, any numberof switches may be used. In some embodiments, switches 370 and 375 maybe combined into a single switch, having any number of inputs andoutputs. For example, in one embodiment, the switch may include twoinputs that may correspond to communications lines 395 and 396 and twophysical outputs with three different output modes, each output modecorresponding to one of the on, off, and standby modes. In anotherembodiment, an additional switch may be located on power line 394 in alocation such that the additional switch is capable of blocking thepower to both main components 380 and main components 385. Switchingcomponent 360 may also control this additional switch, for example. Inthis embodiment, when switching component 360 switches into an off mode,switching component 360 may open the switch on power line 394 in orderto block power to main components 380 and standby components 385.

Power mode selection circuit 300 may include a power input 310 thatdraws power from a power source. For example, power input 310 mayinclude a utility plug that connects to a standard 110/120 volt poweroutlet, a 12 volt power source, or any other type of external powersource. The current may be stabilized by diode 320 and fed intotransformer 330. Transformer 330 may convert the alternating current(AC) to direct current (DC), for example, so that it can be used byelectronic devices. While one diode 320 and one transformer 330 areshown in FIG. 3, any number and different types of diodes andtransformers may be used. Further, in certain embodiments, diode 320and/or transformer 330 may not be included in power mode selectioncircuit 300.

Transformer 330 may output the DC current to other components of powermode selection circuit 300. For example, transformer 330 may providepower to a power mode selection receiving component 340 via power line391, to switching component 360 via power line 393, and to main switch370 and standby switch 375 via power line 394. In this configuration,power mode selection receiving component 340 and switching component 360may be powered via a separate circuit than main components 380 andstandby components 385. This may enable power mode selection receivingcomponent 340 and switching component 360 to be powered independently ofmain components 380 and standby components 385.

Power mode selection receiving component 340 may be capable of receivingan input regarding a power mode selection for an electronic device thatincludes power mode selection circuit 300. For example, a user mayselect a specific power mode for the electronic device by selecting apower mode button (e.g. buttons 230, 240, 250) on input device 110.Input device 110 may send information via network 130 that may bereceived by power mode selection receiving component 340. For example,in embodiments where input device 110 sends information via IR, powermode selection receiving component 340 may include photodiodes capableof receiving the IR pulses and transforming them into electronicsignals. As discussed above, in some embodiments, other communicationprotocols may be used, e.g., Bluetooth, IEEE 802.11, etc. In theseembodiments, power mode selection receiving component 340 may include areceiver capable of receiving information from input device 110 via oneor more of these protocols and transforming them into electronic signalsusable by circuit 300. In other embodiments, a user may provide input topower mode selection receiving component 340 via other mechanisms, suchas manually selecting buttons or the like on the electronic device, orproviding input remotely via the Internet. In the latter example, powermode selection receiving component 340 may receive input from theInternet from a user remotely located from the electronic device, suchas a user who is traveling and uses known Internet mechanisms to provideinput via a web service or smart phone applications that provide orrelay the user's selections to power mode selection receiving component340 via Internet communication mechanisms.

Power mode selection receiving component 340 may be communicativelycoupled to switching component 360 via communications line 392. Powermode selection receiving component 340 may send one or more commands toswitching component 360 based on the input received, e.g., from inputdevice 110. For example, power mode selection receiving component 340may instruct switching component 360 to enter an on mode, an off mode,or a standby mode based on an input received from an external sourcesuch as a remote control.

In response to the input received from power mode selection receivingcomponent 340, switching component 360 may direct main switch 370 and/orstandby switch 375 to open and/or close. Switching component 360 maycontrol main switch 370 via main control line 395 and may controlstandby switch 375 via standby control line 396.

For example, input device 110 may send a signal representing an on modeto power mode selection receiving component 340. Responsive to thesignal, power mode selection receiving component 340 may instructswitching component 360 to place the electronic device in an on mode. Inresponse, switching component 360 may send a first control signal tomain switch 370 via main control line 395. The first control signal maydirect main switch 370 to close and to provide power to main components380 via main power line 397. Switching component 360 may also send asecond control signal to standby switch 375 via standby control line396. The second control signal may direct standby switch 375 to closeand to provide power to standby components 385 via standby power line398.

Similarly, input device 110 may send a signal representing a standbymode to power mode selection receiving component 340. Responsive to thesignal, power mode selection receiving component 340 may instructswitching component 360 to place the electronic device in a standbymode. Switching component 360 may send a first control signal to mainswitch 370 via main control line 395. The first control signal maydirect main switch 370 to open and block power to main components 380.Switching component 360 may send a second control signal to standbyswitch 375 via standby control line 396. The second control signal maydirect standby switch 375 to close and provide power to standbycomponents 385 via standby power line 398.

Similarly, input device 110 may send a signal representing an off modeto power mode selection receiving component 340. Responsive to thesignal, power mode selection receiving component 340 may instructswitching component 360 to place the electronic device in an off mode.Switching component 360 may send a first control signal to main switch370 via main control line 395. The first control signal may direct mainswitch 370 to open and block power to main components 380. Switchingcomponent 360 may send a second control signal to standby switch 375 viastandby control line 396. The second control signal may direct standbyswitch 375 to open and block power to standby components 385. Thus, inthe off mode, main components 380 and standby components 385 do notreceive any power. However, because power mode selection receivingcomponent 340 and switching component 360 are powered by circuitsseparate from that powering main components 380 and standby components385, power mode selection receiving component 340 and switchingcomponent 360 may still draw power.

Power mode selection receiving component 340 and switching component 360are shown in FIG. 3 as separate components. However, in someembodiments, they may be incorporated in a single component. Further,switching component 360 may include any type of hardware and/or softwarecapable of receiving an input regarding a power mode and controlling thepower provided to various components based on that input. In someembodiments, switching component 360 may include hardwired circuitry,such as application-specific integrated circuits (ASICs). In otherembodiments, switching component 360 may include a memory storingsoftware that stores instructions executed by a processor.

As discussed above, switching component 360 may be implemented usingvarious technologies. FIG. 4 is an exemplary block diagram of oneembodiment of a switching component 360 that may include processing andmemory capabilities, consistent with disclosed embodiments. As shown,switching component 360 may include input 410, main output 420, standbyoutput 430, power input 440, processor 450, and memory 460. Input 410may be any input component capable of receiving a control signalindicating a power mode. For example, input 410 may receive a controlsignal from power mode selection receiving component 340. In someembodiments, power mode selection receiving component 340 and switchingcomponent 360 may be combined in a single component, and input 410 mayreceive a control signal from input device 110 via network 130, forexample. In embodiments where input device 110 is a remote control,input 410 may include photodiodes to receive input from the remotecontrol.

Main output 420 may be any output component capable of sending a controlsignal to control the power provided to one or more main components inan electronic device. For example, processor 450 may control the statusof main switch 370 by directing main output 420 to send a control signalvia main control line 395. Similarly, standby output 430 may be anyoutput component capable of sending a control signal to control thepower to one or more standby components in an electronic device. Forexample, processor 450 may control the status of standby switch 375 bydirecting standby output 430 to send a control signal via standbycontrol line 396.

Power input 440 may receive power for switching component 360. Forexample, power input 440 may receive power via a circuit that isseparate from the circuit powering main components 380 and standbycomponents 385, so that switching component 360 may be poweredindependently of the main components 380 and standby components 385.

Processor 450 may be one or more known processing devices, such as amicroprocessor from the Pentium™ or Xeon™ family manufactured by Intel™,the Turion™ family manufactured by AMD™, or any other type of processor.Memory 460 may be one or more tangible storage devices configured tostore information used by processor 450 to perform certain functionsrelated to disclosed embodiments. In some embodiments, memory 460 mayinclude one or more power mode selection programs that, when executed byprocessor 450 of switching component 360, perform various procedures,operations, or processes consistent with disclosed embodiments.

In one embodiment, memory 460 may also store information used byprocessor 450 to select various power modes for different electronicdevices. For example, memory 460 may include information regardingpower-on events to determine whether it is appropriate to place anelectronic device into an off mode or a standby mode. A power-on eventmay be a time in the future that the electronic device must be poweredon, is scheduled to be powered on, etc. For example, in embodimentswhere the electronic device is a DVR, memory 460 may store informationregarding scheduled DVR recordings. If a user attempts to turn theelectronic device completely off, switching component 360 may insteadturn the electronic device into a standby mode, so that the recordingscan be made as scheduled. Further, in some embodiments, memory 460 maystore information regarding scheduled DVR recordings, and processor 450,executing programs stored in memory 460, may generate commands thatautomatically switch a DVR from off mode to standby mode based on thescheduled recordings.

In the embodiments discussed above, memory 460 may store the entire DVRrecording schedule or may store a subset of information related to theDVR recording schedule. For example, the DVR may include a separatememory, which may be included in main components 380 or standbycomponents 385, for example, that stores the DVR recording schedule. Insome embodiments, switching component 360 may obtain information relatedto the DVR recording schedule from the separate memory. For example,instead of obtaining the entire schedule, switching component may obtainthe next power-on event, the next two power-on events, or any number ofthe next power-on events. This information may be obtained at any time,such as before switching component 360 sends commands to block power tomain components 380 and/or standby components 385 or every time there isa power mode change. For example, switching component 360 may receive acontrol signal from power mode selection receiving component, e.g.,indicating a command to change from one power mode to another.Responsive to receiving the control signal with the command, switchingcomponent 360 may obtain information related to the DVR recordingschedule (e.g., one or more of the next power-on events), e.g., bymaking a query for this information to the DVR's memory or to any otherdevice such as a database storing the DVR recording schedule locatedremotely from the DVR via a network such as the Internet. Theinformation related to the DVR recording schedule may then be stored inmemory 460. As discussed above, this information may be used todetermine whether switching component 360 should enter a standby modeinstead of an off mode and whether to automatically switch the devicefrom an off mode to an on mode.

Memory 460 may also store information used to help components, such asstandby components 385, become operational more quickly aftertransitioning from an off mode to an on mode. For example, memory 460may include information such as date, time, and location and may providethis information to the standby components 385 as they transition froman off mode.

FIG. 5 shows an exemplary power mode selection process 500, consistentwith disclosed embodiments. In one embodiment, process 500 may beperformed by, e.g., power mode selection circuit 300. The process maybegin at step 510 where power mode selection receiving component 340receives an input regarding a power state. For example, power modeselection receiving component 340 may receive an input from input device110 via network 130. Power mode selection receiving component 340 maysend a command based on the input to switching component 360, forexample. However, as discussed, power mode selection receiving component340 and switching component 360 may also be a single component.

At step 520, switching component 360 determines whether the receivedinput indicates an off, on, or standby mode. If the input indicates anon mode, switching component 360 may provide power to main components380 and standby components 385 as shown in step 530. For example,switching component 360 may send a first control signal to main switch370 via main control line 395. The first control signal may direct mainswitch 370 to close and to provide power to main components 380 via mainpower line 397. Switching component 360 may also send a second controlsignal to standby switch 375 via standby control line 396. The secondcontrol signal may direct standby switch 375 to close and to providepower to standby components 385 via standby power line 398.

If, at step 520, switching component 360 determines that the inputindicates a standby mode, switching component 360 may provide power tostandby components 385 but may block power to main components 380 asshown in step 540. For example, switching component 360 may send a firstcontrol signal to main switch 370 via main control line 395. The firstcontrol signal may direct main switch 370 to open and block power tomain components 380. Switching component 360 may send a second controlsignal to standby switch 375 via standby control line 396. The secondcontrol signal may direct standby switch 375 to close and provide powerto standby components 385 via standby power line 398.

If, at step 520, switching component 360 determines that the inputindicates an off mode, switching component 360 may block power to bothmain components 380 and standby components 385 as shown in step 550. Forexample, switching component 360 may send a first control signal to mainswitch 370 via main control line 395. The first control signal maydirect main switch 370 to open and block power to main components 380.Switching component 360 may send a second control signal to standbyswitch 375 via standby control line 396. The second control signal maydirect standby switch 375 to open and block power to standby components385. Thus, in the off mode, main components 380 the standby components385 do not receive any power. However, because power mode selectionreceiving component 340 and switching component 360 are powered bycircuits separate from the circuit powering the main and standbycomponents, power mode selection receiving component 340 and switchingcomponent 360 may still draw power.

At step 560, switching component 360 and/or power mode selectionreceiving component 340 may determine if another input has beenreceived. If switching component 360 and/or power mode selectionreceiving component 340 have not received another input, switchingcomponent 360 maintains the current power state, as shown in step 570.If, at step 560, switching component 360 and/or power mode selectionreceiving component 340 receive another input, the process may return tostep 520 where switching component 360 again determines which power modehas been selected.

FIG. 6 shows another exemplary power mode selection process 600,consistent with disclosed embodiments. In one embodiment, process 600may be performed by exemplary embodiments of switching component 360,such as the exemplary embodiment disclosed in FIG. 4 where switchingcomponent 360 includes processor 450 and memory 460. For example,software stored in memory 460 may include instructions that, whenexecuted by processor 450, cause processor 450 to perform one or more ofthe steps in process 600.

Process 600 may begin at step 610 where processor 450 receives an inputregarding a power state via input 410. For example, processor 450 mayreceive an input from power mode selection receiving component 340 viainput 410. In embodiments where power mode selection receiving component340 and switching component 360 are a single component, processor 450,via input 410, may receive an input from input device 110 over network130.

At step 620 processor 450 determines if the input received through input410 indicates an off, on, or standby mode. If the input indicates an onmode, processor 450 may control the outputs at main output 420 andstandby output 430 to provide power to main components 380 and standbycomponents 385, as shown in step 630. For example, processor 450 maydirect main output 420 to send a first control signal to main switch 370via main control line 395. The first control signal may direct mainswitch 370 to close and provide power to main components 380 via mainpower line 397. Processor 450 may also direct standby output 430 to senda second control signal to standby switch 375 via standby control line396. The second control signal may direct standby switch 375 to closeand provide power to standby components 385 via standby power line 398.

If, at step 620, processor 450 determines that the input receivedthrough input 410 indicates a standby mode, processor 450 may controlthe outputs at main output 420 and standby output 430 to provide powerto standby components 385 but block power to main components 380, asshown in step 640. For example, processor 450 may direct main output 420to send a first control signal to main switch 370 via main control line395. The first control signal may direct main switch 370 to open andblock power to main components 380. Processor 450 may also directstandby output 430 to send a second control signal to standby switch 375via standby control line 396. The second control signal may directstandby switch 375 to close and provide power to standby components 385via standby power line 398.

If, at step 620, processor 450 determines that the input receivedthrough input 410 indicates an off mode, processor 450 may determinewhether there are any power-on events, as shown in step 650. Forexample, as discussed above, if processor 450 is part of a power modeselection circuit in a DVR, processor 450 may query the DVR's memory todetermine whether there is a scheduled recording in the future. If, atstep 650, the processor determines that there is a power-on event, theprocess proceeds to step 640, where processor 450 controls the outputsat main output 420 and standby output 430 to provide power to standbycomponents 385 but block power to main components 380. Thus, processor450 returns to a standby mode, as described above with regard to step640.

If, at step 650, processor 450 determines that there are no power-onevents, processor 450 controls the outputs at main output 420 andstandby output 430 to block power to both main components 380 andstandby components 385 as shown in step 660. For example, processor 450may direct main output 420 to send a first control signal to main switch370 via main control line 395. The first control signal may direct mainswitch 370 to open and block power to main components 380. Processor 450may also direct standby output 430 to send a second control signal tostandby switch 375 via standby control line 396. The second controlsignal may direct standby switch 375 to open and block power to standbycomponents 385.

At step 670, processor 450 determines whether another input has beenreceived at input 410. If processor 450 has not received another inputvia input 410, processor 450 maintains the current power state, as shownin step 680. However, if input 410 has received another input, processor450 returns to step 620, where processor 450 determines whether theinput indicates an off, on, or standby mode, and the process, discussedabove, repeats.

Process 600 is an exemplary process and may be varied consistent withdisclosed embodiments. For example, at step 650 of process 600, ifprocessor 450 determines that there are power-on events, processor 450proceeds to standby mode as shown in step 640. However, in oneembodiment, processor 450 may store the next power-on event in memory460. In this embodiment, processor 450, in response to an inputindicating an off mode, may control main output 420 and standby output430 in accordance with an off mode, discussed above with regard to step660. Processor 450 may stay in off mode until either receiving anotherinput or until determining that the time of the power-on event occurs.If input 410 receives another input, processor 450 may determine whetherthe input indicates an on, off, or standby mode, as discussed withregard to step 420. However, if the time of the power on event occursbefore input 410 receives another input, processor 450 may automaticallyproceed to an on mode, controlling main output 420 and standby output430 as discussed above with regard to step 630.

Other embodiments will be apparent to those skilled in the art fromconsideration of the specification and practice of embodiments disclosedherein. It is intended that the specification and examples be consideredas exemplary only, with a true scope and spirit of the disclosedembodiments being indicated by the following claims. For example, anytype of electronic device including the components disclosed hereinconsistent with the described embodiments may be used.

What is claimed is:
 1. A power mode control device comprising: a firstpower component capable of providing power to a first component; a powermode selection receiving component capable of receiving an indication ofa selected power mode from a first power mode, a second power mode, or athird power mode; and a switching component that controls, based on theselected power mode, whether the first component receives power from thefirst power component, wherein the power mode selection receivingcomponent and the switching component receive power independently of thefirst component.
 2. The power mode control device according to claim 1,further comprising: a second power component capable of providing powerto a second component, the second power component being independent ofthe first power component, wherein the switching component controls,based on the selected power mode, whether the second component receivespower from the second power component, and the power mode selectionreceiving component and the switching component receive powerindependently of the second component.
 3. The power mode control deviceaccording to claim 2, wherein the first power mode comprises an offpower mode, and in response to the power mode selection receivingcomponent receiving an indication of the off power mode, the switchingcomponent causes the first power component and second power component toblock power to the first component and the second component.
 4. Thepower mode control device according to claim 2, wherein the switchingcomponent is configured to control whether the first component and thesecond component receive power based on the first power mode, the secondpower mode, or the third power mode.
 5. The power mode control deviceaccording to claim 2, wherein the first power mode comprises an offpower mode, the second power mode comprises a standby power mode, andthe third power mode comprises an on power mode, the power modeselection receiving unit is configured to receive at least one of anindication of the off power mode, an indication of the standby powermode, or an indication of the on power mode, and the switching componentis configured to: cause the first power component and the second powercomponent to block power to the first component and the second componentresponsive to the power mode selection receiving component receiving theindication of the off power mode; cause the first power component toprovide power to the first component and the second power component toblock power to the second component responsive to the power modeselection receiving component receiving the indication of the standbypower mode; and cause the first power component and the second powercomponent to provide power to the first component and the secondcomponent responsive to the power mode selection receiving componentreceiving the indication of the on power mode.
 6. The power mode controldevice according to claim 2, wherein the first power mode comprises anoff power mode, the second power mode comprises a standby power mode,and the third power mode comprises an on power mode, and the switchingcomponent is configured to: receive an indication from the power modeselection receiving component of the off power mode to block power tothe first component and to the second component; receive informationregarding power-on events for an electronic device including the firstcomponent and the second component; and cause the first power componentto provide power to the first component and the second power componentto block power to the second component based on the informationregarding the power-on events.
 7. The power mode control deviceaccording to claim 6, wherein the switching component is furtherconfigured to: receive the information regarding the power-on eventsresponsive to receiving the indication from the power mode selectionreceiving component of the off power mode.
 8. The power mode controldevice according to claim 7, wherein the power-on events includescheduled recordings for the electronic device.
 9. An electronic systemcomprising: an electronic device; and an input device that sends anindication of a selected power mode to the electronic device via anetwork, the electronic device comprising: a first power componentcapable of providing power to a first component; a power mode selectionreceiving component capable of receiving the indication of the selectedpower mode from a first power mode, a second power mode, or a thirdpower mode; and a switching component that controls, based on theselected power mode, whether the first component receives power from thefirst power component, wherein the power mode selection receivingcomponent and the switching component receive power independently of thefirst component.
 10. The electronic system according to claim 9, theelectronic device further comprising: a second power component capableof providing power to a second component, the second power componentbeing independent of the first power component, wherein the switchingcomponent controls, based on the selected power mode, whether the secondcomponent receives power from the second power component, and the powermode selection receiving component and the switching component receivepower independently of the second component.
 11. The electronic systemaccording to claim 10, wherein the first power mode comprises an offpower mode, and in response to the power mode selection receivingcomponent receiving an indication of the off power mode, the switchingcomponent causes the first power component and the second powercomponent to block power to the first component and the secondcomponent.
 12. The electronic system according to claim 10, wherein thefirst power mode comprises an off power mode, the second power modecomprises a standby power mode, and the third power mode comprises an onpower mode, and the input device comprises: one or more input mechanismsconfigured to receive a selection of the on power mode, the off powermode, and the standby power mode, wherein the switching component isconfigured to control whether the first component and the secondcomponent receive power based on the received selection of the powermode.
 13. The electronic system according to claim 10, wherein the firstpower mode comprises an off power mode, the second power mode comprisesa standby power mode, and the third power mode comprises an on powermode, the power mode selection receiving unit is configured to receiveat least one of an indication of the off power mode, an indication ofthe standby power mode, or an indication of the on power mode, and theswitching component is configured to: cause the first power componentand the second power component to block power to the first component andthe second component responsive to the power mode selection receivingcomponent receiving the indication of the off power mode; cause thefirst power component to provide power to the first component and thesecond power component to block power to the second component responsiveto the power mode selection receiving component receiving the indicationof the standby power mode; and cause the first power component and thesecond power component to provide power to the first component and thesecond component responsive to the power mode selection receivingcomponent receiving the indication of the on power mode.
 14. Theelectronic system according to claim 10, wherein the first power modecomprises an off power mode, and the switching component is configuredto: receive an indication from the power mode selection receivingcomponent of the off power mode to block power to the first componentand to the second component; receive information regarding power-onevents for an electronic device including the first component and thesecond component; and cause the first power component to provide powerto the first component and the second power component to block power tothe second component based on the information regarding the power-onevents.
 15. The electronic system according to claim 14, wherein theswitching component is further configured to: receive the informationregarding the power-on events responsive to receiving the indicationfrom the power mode selection receiving component of the off power mode.16. The electronic system according to claim 15, wherein the power-onevents include scheduled recordings for the electronic device.
 17. Amethod for managing power provided to an electronic device including afirst component and a second component, the method comprising: providingpower to a power mode selection receiving component independently of thefirst component and the second component; receiving, by a power modeselection receiving component, an indication of a selected power modefrom a first power mode, a second power mode, or a third power mode; andcontrolling, based on the indication of the selected power mode, whetherthe first component receives power from a first power component andwhether the second component receives power from a second powercomponent.
 18. The method according to claim 17, wherein the first powermode comprises an off power mode, and the method further comprises:causing the first power component to block power to the first componentand the second power component to block power to the second component inresponse to the power mode selection receiving component receiving anindication of the off power mode.
 19. The method according to claim 17,further comprising: controlling whether the first component and thesecond component receive power based on a first power mode comprising anoff power mode, the second power mode comprising a standby power mode,and the third power mode comprising an on power mode.
 20. The methodaccording to claim 17, wherein the first power mode comprises an offpower mode, the second power mode comprises a standby power mode, andthe third power mode comprises an on power mode, and the method furthercomprises: receiving at least one of an indication of the off powermode, an indication of the standby power mode, or an indication of theon power mode; if the indication of the off power mode is received,controlling the first power component and the second power component toblock power to the first component and the second component; if theindication of the standby power mode is received, controlling the firstpower component to provide power to the first component and the secondpower component to block power to the second component; and if theindication of the on power mode is received, controlling the first powercomponent and the second power component to provide power to the firstcomponent and the second component.
 21. The method according to claim17, wherein the first power mode comprises an off power mode, and themethod further comprises: receiving an indication from the power modeselection receiving component of the off power mode to block power tothe first component and to the second component; receiving informationregarding power-on events for the electronic device that includes thefirst component and the second component; and controlling the firstpower component to provide power to the first component and the secondpower component to block power to the second component based on theinformation regarding the power-on events.
 22. The method according toclaim 21, further comprising: receiving the information regarding thepower-on events responsive to receiving the indication from the powermode selection receiving component of the off power mode, wherein thepower-on events include scheduled recordings for the electronic device.